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Finding the Fourth Proportional to 72,009.35, 107,911.08 and 52,883.97

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Solution

The fourth proportional to 72,009.35, 107,911.08 and 52,883.97 is: 79,250.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,009.35 : 107,911.08 = 52,883.97 : x
  2. Step 2: Convert to fraction form
    72,009.35/107,911.08 = 52,883.97/x
  3. Step 3: Cross multiply
    72,009.35x = 107,911.08 × 52,883.97
  4. Step 4: Simplify right side
    72,009.35x = 5,706,766,317.39
  5. Step 5: Solve for x
    x = 5,706,766,317.39/72,009.35
  6. Step 6: Final answer
    x = 79,250.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.